The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 23, 2025
Filed:
Mar. 24, 2017
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Jakub Reiter, Munich, DE;
Philipp Oberhumer, Munich, DE;
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Abstract
An electrochemical cell includes a negative electrode, a positive electrode, an aluminum current collector that is connected to the positive electrode in an electrically conductive manner, and an electrolyte. The electrolyte includes non-ionic organic compounds present in an amount of less than 1.0 wt % of the total electrolyte, and an ionic liquid as a solvent. The ionic liquid is present in the electrolyte in an amount of at least 80 wt % of all electrolytes. In addition, the ionic liquid includes a cation of the formula: and an anion of the formula: Furthermore, the ionic liquid includes a conducting salt containing: The electrolyte has less than 0.5 wt % of PF. The aluminum current collector is provided with a protective layer comprising AlF.